Door-bolt mechanism.



M. FURMAN JsE WP, T. ROWE.

DOOR BOLT MEOHANISM.

APPLIOATION'IILED 00'I.14,1908.

Patented Aug. 24, 1909.

wwnw oeo A l i an STATES PATENT ()FFICE.

1511537, NEW YORK, AND WALTER '1. ROWE, 0F TUCKAHOE, NEW YORK.

DOOR-BOLT MECHANISM.

Application flied October 14, 1908. Serial No. 457,638.

To all whom concern.

Be it known that We, MroHAEL FURMAN, a

, citizen'of the United States, and a resident of the borough of Bronx, county, city, and

- State of New York, and WALTER T. Rows, a

citizen. of the UnitedStstes, and a resident of Tuckahoe, county of W'estchester and State of New York, have invented certain new and uselul Improvements miloor-Bolt Mechanism, as set forth n the following spec1ficatiou.

This invention relates to door looking or door bolting.

The general object of the invention is to insure the bolting of a door in a secure manner against jiinmying or any forcible opening by unauthorized persons.

To-this end one object is to provide for the bolting of the door upon both sides, the hing-ed sideand the opposite side, as it has been found that many forcible entries have been accomplished by removing, the hinges of a door.

A further object of the invention is to provide an improved arrangement of means for the locking and manipulation of such bolts by means of a suitable lock and key, as of the tumbler type.

A further object of the invention is to provide for tlmmdng out of operation all the key operated manipulation of the bolts by means on the interior of the door so that even the pro )er key will then be ineffective in throwing t he bolts but so thatthe' operating shaft for the bolts may be freely manipulated from the interior of the door. It is also an object of the vention to improve the janih sockets for t 1e door bolts so as to prevent access to the door bolts from the exterior of the door.-

The above and further objects of the invention will be pointed out in the accomanyingaclaiins and will be clear from the racks 22 and 23 suitably; secured to the retolloningi description which may be read in connection with the accompanying drawings, which form part of this application, in

which like characters designate correspond parts and in which:

"igure 1 is a horizontal section with lines broken v through line 11 of the door construction of Fig. 3 and showing the appli- Lion of the invention; Fig. 2 is a sectlon th o8 and'thrcughline 22 of section on line 3-3 of Fig.

perspective view showing ts in position.

' Referring now more in detail to tho'drawmgs, 1 indicates any suitable door suitably hinged between the jambs 2 and ,3, it being, understood that the door may be hinged either to the jamb 2 or to the jamb 3 as desired.

4 indicates the bolt socket secured to jamb 2 and fi a similar sockctsecured to j amb 6 and 7 designate respectively bolts extending across the inner face ofthc door and cooperating with sockets 4 and 5. Suitable guides and 9 for thebolts-6 and;7 respectively may be suitably secured to the door 1. 10 indicates the interior bolt case, while 11 indicates any suitable form of lock prcferably of the cylinder type'with tumblers and operated by the key v12.

The lock cylinder is indicated by 13. A shaft 14 axially alined -With the cylinder 13 is preferably secured to the cylinder 12.5 as by an universal joint or its equivalent and indi- 'cated by 15. On the inner -end ol' the shaft 15' is provided a clutch member 16 which is shown as a female clutch mem her in. the form of a short cylinder axially perforated by a polygonal opening 0. A pin 17 may secure the clutch member 16 to the shaft 14, the shaft 14 beingrovided with a series of spaced holes for t 'iis pin so as to provide for adjustment in accordance with. different thickness in the doors, it being understood that the shaft 14 should be provided long enough for the maximum thickness of door and'that any excess of length may be cut oil. The usual inside escutcheon plate 18 may be mortised' into the interior of the door and provide a seat for the screws 19 holding the lock 11 in place. This escutcheon plate may also form a bearing for the clutch member 16.

Within the interior case 10 suitable guides as 20 and 21 are provided for the inner ends of the bolts 6 and 7. These inner ends of the bolts are also provided with facing an operating shaft 27 provided at its outside.

with the-manipulating knob 28. This shaft has an outward movement through the cover cover 26. It has a manipulating knob 33 and is made substantially wedge-shaped and is slotted to straddle shaft 27. Its portion 34 has greater thickness than its portion 35. The spring 2%) holds the boss 36 of knob 28 in contact with this latch plate. When the portion 35 is beneath the boss 36 the clutch members 16 and 30 operatively engagedas shown in Fig. 3. \Vhen the thicker portion 34 is beneath the boss 36 the clutch members are disengaged but the spur-gear 31 is still operativcly engaging the racks 22 and 23. However, the wedge-shaped night latch in all positions permits the free rotation of the shaft 27 throughout as many rotations of the same as may be required. This is an advan tage inasmuch as considerable leverage may be required to throw the long bolts 6 and 7 and a greater leverage may be obtained by a small pinion 31 turning through a complete rotation, than by a large pinion turning a few degrees. that the bearing 24 is long enough to serve as sitions just described.

' a seat for the shaft-27 when in both of he po- The case lo'may be securedto the inside'ol' the door by any suitable means as by screws 36 and. the cover 26 may be suitably secured to the case as by screws 37. The inside walls of the case 10 cooperating with the racks and 23 may serve as stops for limiting the movement of the bolts 6 and 7 and maintain the arts in assembled relations;

'1" 1 k1 lv l l lc soc ct mcm )c .s 4 ant 5.p1evious y re ferred to, are shown 111 a ecu iar constructron in detail in Fig. 4. he socket-portion 40 may be suitably shaped to recelve the bolt as 1m icated.

door j amb between the jamb and the edge-of the door. It is provided with a slot 42 through which may extend the tongue 43 of plate 44 to be secured to the butler strip 45.

he ends of the tongue 43 and of the pro- ;ecting ends 46 and 47 of the part 41 may be )eVeled off to a chisel-like edge so as to facilitate driving tl'lem'into place in the jamb construction. Suitable means such as screws 48 may secure the portion 41 and additional means such as screws 49 may secure the socket portion 40 although this portion, be-

' mg integral with the portion 41, would be securedby the screws 48. The member 44 It is also to be understood from the outside of the door.

It is preferably formed 'integrally with a flat plate 41 extending out at a right angle and adapted to lie against the may likewise be secured in position by suitable means as by screws 50. The member 41 having portions 46 and 47 on-each' side of the slot 42 is made long enough for the maximum width of doors and the slot 42 rovides for the adjustment of the member 44 to suit the width of the particular door construction employed. These plates maybe mortiscd into the j amb construction if desired and as shown and serve actually to prevent the insertion of a thin tool to manipulate the-bolts 6 or .7 from the exterior of the door.

The various parts may be constructed of any suitable material, for instance cast, wrought or stamped metal.

Operation: The parts are shown in their proper position for manipulation by the key 12 from outside the door. One complete left hand rotation ofrthe key 12 effects one complete rotation of the cylinder 13 which in turn effects one complete rotation of the clutch member 16., The intermediate connection between clutch member 16 and the cylinder 13 is made flexible so as .to compensate for any slight error of alinement in various parts. The clutch member 16 imparts one complete rotatiomjn the direction of the arrow shown infigjit 'to the shaft 27 and to spur gear 31. A rotation of spur gear 31 causes theracks 22 and 23 to travel in the dirwtim'i to remove the bolts 6 and 7 from the sockets 4 and 5. The door is now unloclacd and may be opened in any well known manner. The key 12, of course, would be removed and carried by the owner. In case itis desired to lock the door from the interior the night latch 32 shouldbe forced to the left. from the position shown in Fig. 1 causing the boss 36 to ride up on to the thick portion 34 whichdisengages the clutch members 16 and 30. A left hand turri of the manipulating knob 28 will, then throw the bolts 6 and 7 into their soc kets 4 and. 5. It will then be imoossible; even with the ire )er key to 1 l 1 r throw the bolts 6 and 7 to un oeking position This is evident because the cylinder around shaft 27.

Although a satisfactory embodiment of the variousfeatures of the invention has been illustrated and described, it is to be understoodthatwhat has been illustrated and dc indefinitely without effecting the scribed is merely for the purpose of illustratio'n and not as a limitation. It is also to be understood that the term bolt is used to include a bolt not necessarily such as illustrated as an integral bar extending from case 10 to the edge of the door but of suitable con struction and comprising any suitable number of parts. It is' also to be understood that other means than a rack and gear ma be' used to manipulate a bolt although suc means is preferred. Furthermore the case 13 may be turned.

' ially movablerotatable bolt throwing shaft provided with a hand knob for manipulation 10 need not be constructed shown; It is not essential that t e case a removable cover or an integral back plate.

What is claimed and what is desired to be secured by United States Letters Patent is:

1. In door bolting mechanism in combination, one or more movable bolts; rotatable means key 0. erable from the outside of the door; a clutc member connected to the inside portion of said rotatable means; an ax:

from the inside of the door and having a second clutch'member atits inner end; a spring for forcin said shaft into clutching enga ement 'wit said first clutch member; an a movable ,wedge plate operable from. the inthrowing each of said bolts through the medium of the pinion and each rack; and means operable from' the inside of the .door for disconnecting said rotatable shaft from said cylinder lock and at all times permitting the free and complete rotation of said rotatable shaft.

3.. In door bolting mechanism in combination, two movable bolts designed "to ex; tend horizontally each from an intermediate ortion of the door entirely across from that ocality to the door jamb; rotatable means, key operable from the outside of the door; a clutch member connected to. the inside portion of said rotatable means; an axially movable rotatable bolt throwin shaft provided with a hand manipulatingnob for the inside of the door andhaving a second clutch member at its inner end; a spring for forcing said shaft mto clutching engagement with said first clutch member; and a movable wedge plate operable from the in'side of the, door for retracting said shaft to disengage 4,

the clutch members.

4 In \deor bolti imcombirecisely as ave In testimony nation, two movable bolts designed to ex-' tend horizontally each from an intermediate ortion of the door entirelyracross from that' ocality-to the door jamb; 'a rotatable shaft owing said bolts; a cylinder lock, key operable from the outside of the doorafor, operating said shaftto throw said b'oits; and:

olperable from the inside of the-door for t r means operable from the inside of the door for disengaging saidshaft from saidcylinder lock'and permitting the free operation of said shaft throu bout a complete rotation. 5. In door bolting mechanism in combination, two movable bolts designed to eX tend horizontally each from an intermediate portion of the door entirely across from that.

, ocality to the door 'amb; arack formed on the inner end-of eac bolt; a rotatableshaft having a pinion meshing with said racks and being mounted to have axial movement; a

cylinder lock, key 0 erable from the outside of the door; means or connectin said rota-.

table shaft with said cylinder 100 r, whereby a com lete rotation of said cylinder 'lo'ck mayl be ut' ized for throwing said bolts throng themedium of the racks and piniori; and means operable from the inside ofthe' door for disconnecting said rotatable shaft oin:

said cylinder lock and at all times permit ing the free and complete rotation'of said rotatable shaft. p; k .6. Indoor bolting mechanism -in-cembi nation, a pair of bolts for extending-both toi} gether entirely across the door; an exteriorock for manipulating said bolts into and'ont' of locking'position; and a jamb socket for each bolt, each jamb socket comprisingfa, member justmcnt at its outer end and to lie between the jamb'and the edge of the door and a T rovided With a bolt receiving 7 socket and having a flat plate slotted for adshaped bufier plate with its tongue fitted to pass through said fiat slotted plate in adusted position against the edge of a buffer strip. 7

whereof, we have signed oar names to this specification, in the presence of two subscribing Witnesses. MICHAEL FURMAN. -WALTE R T. ROWE.

Witnesses:

-' Lnonnnn DAY, C. E. HANSELMAN. 

